Grindavík Weather in January
January in Grindavík sees daytime temperatures around 5°C (41°F) and lows of 1°C (34°F) at night. With around 139 mm (5.5 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Grindavík in January
On average, there are about 19 days with rain during this month, averaging 139 mm (5.5 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Grindavík in January
In January, expect low temperatures in Grindavík, with highs of 5°C (41°F) and lows of 1°C (34°F) at night. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights drop to 1°C (34°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Grindavík in January
The city usually sees around 20 hours of sunlight, indicating fewer sunny days.If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Grindavík. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Grindavík's climate page.
Grindavík Temperature in January
Min Temperature
1°C (34°F)
Max Temperature
5°C (41°F)
Chance of Rain
64%
Precipitation
139 mm (5.5 in)
Rainy days
19 days
Humidity
78% *
Sunshine
20 hours *
Percentage Sunshine
12% *
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Grindavík typically stay consistent throughout January, with daily highs averaging around 5°C (41°F). Nights are very cold, with lows around -2°C (28°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Grindavík in January
Browse day-by-day weather records for Grindavík spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Grindavík historical weather extremes in January
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Grindavík.
- Grindavík recorded its highest January temperature of 9°C (48°F) on January 3, 2019.
- The coldest January day was on January 15, 1981, with a maximum of -8°C (18°F).
- Grindavík registered its coldest January night on January 15, 1981, with temperatures dropping to -13°C (9°F).
Best Places in Iceland in January
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in January →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Grindavík in January
Dress warmly and in layers for your trip to Grindavík in January. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Grindavík in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Grindavík's climate page.
Temperature Rainfall Sunshine Humidity
See the full Grindavík climate overview or explore weather in Iceland.
